How to access relation imageName in twig (using VichUploaderBundle) - symfony

Question

I have an issue with {{app.user}} and Entity relation.
My user has a ManyToOne relation with an entity CustomerGroup:
**
* #ORM\Entity(repositoryClass="App\Repository\UserRepository")
* #ORM\HasLifecycleCallbacks()
*/
class User implements UserInterface
{
/**
* #ORM\Id()
* #ORM\GeneratedValue()
* #ORM\Column(type="integer")
*/
private $id;
/**
* #ORM\ManyToOne(targetEntity="App\Entity\CustomerGroup")
* #ORM\JoinColumn(nullable=false)
*/
private $CustomerGroup;
...
My CustomerGroup Entity uses VichUploaderBundle :
/**
* #ORM\Entity(repositoryClass="App\Repository\CustomerGroupRepository")
* #Vich\Uploadable
*/
class CustomerGroup
{
/**
* NOTE: This is not a mapped field of entity metadata, just a simple property.
*
* #Vich\UploadableField(mapping="customer_logo", fileNameProperty="imageName", size="imageSize")
*
* #var File
*/
private $imageFile;
/**
* #ORM\Column(type="string", length=255, nullable=true)
*
* #var string
*/
private $imageName;
/**
* #ORM\Column(type="integer", nullable=true)
*
* #var integer
*/
private $imageSize;
public function __construct(?File $imageFile = null)
{
$this->customerEntities = new ArrayCollection();
$this->models = new ArrayCollection();
$this->masterTypes = new ArrayCollection();
$this->documents = new ArrayCollection();
$this->deployModels = new ArrayCollection();
$this->imageFile = $imageFile;
if (null !== $imageFile) {
// It is required that at least one field changes if you are using doctrine
// otherwise the event listeners won't be called and the file is lost
$this->dateUpd = new \DateTimeImmutable();
}
}
/**
* If manually uploading a file (i.e. not using Symfony Form) ensure an instance
* of 'UploadedFile' is injected into this setter to trigger the update. If this
* bundle's configuration parameter 'inject_on_load' is set to 'true' this setter
* must be able to accept an instance of 'File' as the bundle will inject one here
* during Doctrine hydration.
*
* #param File|\Symfony\Component\HttpFoundation\File\UploadedFile $imageFile
*/
public function setImageFile(?File $imageFile = null): void
{
$this->imageFile = $imageFile;
if (null !== $imageFile) {
// It is required that at least one field changes if you are using doctrine
// otherwise the event listeners won't be called and the file is lost
$this->dateUpd = new \DateTimeImmutable();
}
}
public function getImageFile(): ?File
{
return $this->imageFile;
}
public function setImageName(?string $imageName): void
{
$this->imageName = $imageName;
}
public function getImageName(): ?string
{
return $this->imageName;
}
public function setImageSize(?int $imageSize): void
{
$this->imageSize = $imageSize;
}
public function getImageSize(): ?int
{
return $this->imageSize;
}
In my Twig template, I want to access the CustomerGroup's imageName from the user. What I tried :
{{ app.user.CustomerGroup.imageName }} -> null
{{ app.user.getCustomerGroup().getImageName() }} -> null
But, if I do : `{{ app.user.CustomerGroup.name}} --> I get the correct value
When I dump {{app.user}} :
User^ {#824 ▼
-id: 1
-email: "xxxxxxxxxxxxxx"
-roles: array:1 [▶]
-password: "xxxxxxxxxxxxxxx"
-CustomerGroup: CustomerGroup^ {#809 ▼
+__isInitialized__: false
-id: 1
-name: null
-abbreviation: null
-isActive: null
-customerEntities: null
-dateAdd: null
-dateUpd: null
-createdBy: null
-modifiedBy: null
-models: null
-masterTypes: null
-documents: null
-deployModels: null
-imageFile: null
-imageName: null
-imageSize: null
…2
}
-CustomerEntity: CustomerEntity^ {#754 ▶}
-customerSites: PersistentCollection^ {#842 ▶}
-dateAdd: DateTime #1566424800 {#827 ▶}
-dateUpd: DateTime #1566579539 {#826 ▶}
-createdBy: User^ {#824}
-modifiedBy: User^ {#824}
-firstName: "xxxxx"
-lastName: "xxxxxx"
-isActive: true
-isDeleted: false
}
If I Dump app.user.CustomerGroup:
CustomerGroup^ {#809 ▼
+__isInitialized__: false
-id: 1
-name: null
-abbreviation: null
-isActive: null
-customerEntities: null
-dateAdd: null
-dateUpd: null
-createdBy: null
-modifiedBy: null
-models: null
-masterTypes: null
-documents: null
-deployModels: null
-imageFile: null
-imageName: null
-imageSize: null
…2
}
The first try only works when I'm on a controller that returns the CustomerGroup entity.
Thanks for your help
Best,
Julien

Answer 1

I found an ackward solution !
If I want the imageName property to be loaded, I have to load the CustomerGroup relation somewhere IN the template. This way, the entity is loaded and I can access the imageName property.
Example :
{{app.user.CustomerGroup.imageName}} ==> result null
{{app.user.CustomerGroup.name}}
{{app.user.CustomerGroup.imageName}}
Results in :
Customer1
Customer1.png
So, I call the CustomerGroup.name somewhere in the top of my twig file (in the body class for example and then I can call the imageName property.